Synthesis and absolute configuration of planar chiral ferrocenophanes by amide-directed ortho-lithiation

Tetrahedron Asymmetry

Volumn 19, Issue 18, 2008, Pages 2119-2122

  Stavrakov, Georgi ^a   Simova, Svetlana ^a   Dimitrov, Vladimir ^a  

^a INSTITUTE OF ORGANIC CHEMISTRY   (Bulgaria)

Author keywords

[No Author keywords available]

Indexed keywords

AMIDE; FERROCENE; FERROCENE DERIVATIVE; HEXANE; MACROCYCLIC COMPOUND;

ARTICLE; CHEMICAL REACTION; CHEMICAL STRUCTURE; CHIRALITY; LITHIATION; METALLATION; NUCLEAR MAGNETIC RESONANCE; PRIORITY JOURNAL; STEREOCHEMISTRY; SYNTHESIS;

EID: 53649103348     PISSN: 09574166     EISSN: 1362511X     Source Type: Journal    
DOI: 10.1016/j.tetasy.2008.09.013     Document Type: Article

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30. 2: C, 63.17; H, 6.36. Found: C, 62.89; H, 6.22.
31. 4 and concentrated under reduced pressure. Purification was done with flash column chromatography (silica, EtOAc/hexane = 1:1) to afford 0.018 g (22%) of ferrocenophane 7 and 0.029 g (37%) of ferrocenophane 6, and 0.030 g (39%) of the starting material 3.
32. 2: C, 63.97; H, 6.65. Found: C, 63.59; H, 6.93.
33. 2: C, 64.71; H, 6.91. Found: C, 65.08; H, 7.13.